Pump for oil and like wells.



W. H. BRADLEY.

PUMP FOR OIL AND LI KE WELLS.

APPLICATION FILED JAN. 6, 1914.

1 19,631 Patented Feb. 23, 1915.

A TTORNE Y.

STATES ire WILLIAM HARISON BRADLEY, OF KIEFER, OKLAHOMA PUMP FOR'OIL AND LIKE wELLs.

Application filed January 6, 1914.

To all whom it may concern Be it known that I, VVILLLi-u HARISON BRADLEY, a citizen of the United States, residing at Kiefer, in the county of Creek and State of Oklahoma, have invented new anduseful Improvements in Pumps for Oil and like Wells, of whichthe following is a specification. v

This invention relates to improvements in pumps and more particularly to the type of pumps adapted to oil and like wells.

Theobject of this invention is to provide a pump of this character so constructed that the working parts may be readily cleared of the sand without delaying the operating of the pump.

While the preferred form of this invention is illustrated upon the accompanying sheet of drawing yet minor detail changes may be made without departing from the scope thereof.

Figure 1 is a view in side elevation with I parts in section and parts broken away illustrating this improved pump in operative position. F ig. 2 is a similar view illustrating the position of the operating parts when being cleared of sand.

In carrying out this invention an anchor collar 1 internally screw threaded at each end is interposed between the ends of the tubing 2 and, if desired, may be substituted for the usual working barrel. The interior of the anchor collar is provided with an inwardly tapering seat 3 adapted to receive an anchor check 4. The exterior of the anchor 4 is provided with suitable packing disks 5 to form a complete closure when the anchor is seated in the collar, the packi'ng disks being secured between an annular shoulder 5" upon the upper end of the anchor of a diameter to contact within the upper walls of thetapering seat3 and a shoulder will prevent the sand deposited above the anchor working down between the packing and seat. A central passage 6 is provided through the anchor with the upper end internally screw threaded to receive the lower end of an anchor pi e 7 The upper end of the anchor pipe is exteriorly screw threaded to receive a collar 8 to which is attached the lower end of a standing .valve 9 having a central passage with a ball Specification of Letters Patent.

Patentedl'Feb.23, 1915.

Serial No. 810,650.

valve and cage 10 thereover at the upper end, and inverted exterior cups 11. A traveling barrel 12 internally screw threaded at each end surrounds an anchor pipe 7 and standing valve 9. The lower end of the traveling barrel 12 is threaded into a gland 13 adapted to Work freely over the anchor pipe 7 and the upper end is inserted into a collar supporting a ball valve outlet and cage 14. The upper portion of the cage is provided with a threaded stem adapted to be attached to the lower end of a sucker rod 15.

In operation the anchor 4 will be seated in the collar 1 and the traveling barrel 1?. reciprocated about the anchor pipe 7 and standing valve 9. A certain amount of fine sandwill be carried upward through the valve by the oil and will settle below the traveling barrel 12 which in time will interfere with the proper working of the pump. This will .be indicated to the operator by a bump on the downward stroke. To clear the pump of the sand it is only necessary to increase the upper stroke of the sucker rod which will raise the anchor 4 from its seat in the collar 1, as shown in Fig. 2, and allow the collected sand to descend into the wall. The anchor is again seated upon the downward stroke and the pumping operation continued as before. To raise the anchor 4 it is only necessary to increase the upward stroke suflici'ently to cause the gland 13 of the traveling barrel to engage the collar 8 upon the anchor pipe and unseat the anchor 4.

WVhat I claim is:

In a pump of the character described, an

. eling barrel surrounding the anchor pipe and standing valve, inverted cups upon the standing valve coacting With the traveling upon the. lengthening of the upward stroke barrel, an outlet valve at the upper end of of the pump. the barrel, means for connection With a sucker rod thereon, and a gland upon the m f HARISON BRADLEY lower end of the barrel Working freely over Witnesses: the anchor pipe adapted to engage the an- S. S. KRAUSE,

chor pipe collar and unseat the anchor check 0. S. Top'p 

